"""346-4 되돌리기 앞일 — 사진 대상 = aislo:draft: 전부 · 누름 중간은 안 찍고 놓을 때 한 번 · 크기.

349 — 열기만(손길 없음) = 걸음 0 · 열 때 쓰는 초안은 첫 사진 · 조작 한 번 = 걸음 하나.

./venv/Scripts/python.exe -m pytest resources/tester/test_346_4_profile_history.py -q
"""

from __future__ import annotations

import json
import subprocess
from pathlib import Path

import pytest

ROOT = Path(__file__).resolve().parents[2]
TS_FILE = ROOT / "B05_Profile" / "B05_Profile_UI_Profile_History.ts"
TSC = ROOT / "config" / "node_modules" / "typescript" / "bin" / "tsc"

DRIVER = r"""
import { writeFileSync } from "node:fs";
// 세션 흉내 — getItem 은 진짜처럼 매번 새 글을 돌려줌(사진끼리 글을 같이 쓰는지 재려고).
const data = new Map();
globalThis.sessionStorage = {
  get length() { return data.size; },
  key: (i) => [...data.keys()][i] ?? null,
  getItem: (k) => (data.has(k) ? Buffer.from(data.get(k)).toString() : null),
  setItem: (k, v) => data.set(k, String(v)),
  removeItem: (k) => data.delete(k),
};
globalThis.window = new EventTarget();
window.setTimeout = setTimeout;
const { createProfileHistory } = await import("./B05_Profile_UI_Profile_History.js");
const tick = () => new Promise((r) => setTimeout(r, 5));
const out = {};

// 1. 대상 — 초안 통 전부 + 옛 키 · 보기 설정 · pref · result 는 뺌
const K = {
  route: "aislo:draft:route-draft:p1",
  cross: "aislo:draft:crossdesign:p1:7",
  pipes: "aislo:draft:pipes:p1",
  legacy: "b05:uphill:p1",
  layout: "b05-panel-collapsed",
  pref: "aislo:pref:table-open",
  result: "aislo:result:latest:p1",
};
for (const k of Object.values(K)) sessionStorage.setItem(k, "0");
let restored = 0;
const h = createProfileHistory(() => (restored += 1));
window.dispatchEvent(new Event("keydown")); // 손길 — 열 때가 끝남
for (const k of Object.values(K)) sessionStorage.setItem(k, "1");
h.record();
out.undo = h.undo();
out.after = Object.fromEntries(Object.entries(K).map(([n, k]) => [n, sessionStorage.getItem(k)]));
out.restored = restored;

// 2. 누르고 있는 동안 기록 미룸 · 놓으면 한 번
data.clear();
sessionStorage.setItem(K.cross, "a");
const h2 = createProfileHistory(() => {});
window.dispatchEvent(new Event("pointerdown"));
for (const v of ["b", "c", "d", "e"]) {
  sessionStorage.setItem(K.cross, v);
  h2.record();
}
out.heldCanUndo = h2.canUndo();
window.dispatchEvent(new Event("pointerup"));
await tick();
out.releasedCanUndo = h2.canUndo();
h2.undo();
out.oneUndo = sessionStorage.getItem(K.cross);
out.noMoreUndo = !h2.canUndo();

// 3. 크기 — 300 KB 칸 셋 · 작은 칸만 바꾸며 100단
data.clear();
const big = (c) => c.repeat(300 * 1024);
sessionStorage.setItem(K.route, big("r"));
sessionStorage.setItem(K.cross, big("x"));
sessionStorage.setItem(K.pipes, big("p"));
globalThis.gc();
const before = process.memoryUsage().heapUsed;
const h3 = createProfileHistory(() => {});
window.dispatchEvent(new Event("keydown"));
for (let i = 0; i < 100; i += 1) {
  sessionStorage.setItem("aislo:draft:alignment-draft:p1:7", JSON.stringify({ i }));
  h3.record();
}
globalThis.gc();
out.heapMb = (process.memoryUsage().heapUsed - before) / 1024 / 1024;
let steps = 0;
while (h3.undo()) steps += 1;
out.steps = steps;

// 4. 열기만 — 메뉴 누름(세우기 전) · 열 때 초안 쓰기 · 되살림 찍기 · 놓은 뒤 기다림 = 걸음 0
data.clear();
sessionStorage.setItem(K.cross, "saved");
window.dispatchEvent(new Event("pointerdown"));
const h4 = createProfileHistory(() => {});
sessionStorage.setItem("aislo:draft:std-cross:p1", "std");
sessionStorage.setItem(K.cross, "opened");
sessionStorage.setItem(K.route, "kept");
h4.record();
window.dispatchEvent(new Event("pointerup"));
await new Promise((r) => setTimeout(r, 450));
out.openCanUndo = h4.canUndo();
// 조작 한 번 — 누름 · 계획고 고침 · 놓음 = 걸음 하나 · 되돌리면 열 때 모습
window.dispatchEvent(new Event("pointerdown"));
sessionStorage.setItem("aislo:draft:alignment-draft:p1:7", "1");
window.dispatchEvent(new Event("pointerup"));
await new Promise((r) => setTimeout(r, 450));
out.editCanUndo = h4.canUndo();
h4.undo();
out.openState = {
  grade: sessionStorage.getItem("aislo:draft:alignment-draft:p1:7"),
  cross: sessionStorage.getItem(K.cross),
  route: sessionStorage.getItem(K.route),
  std: sessionStorage.getItem("aislo:draft:std-cross:p1"),
};
out.oneStep = !h4.canUndo();
writeFileSync(process.argv[2], JSON.stringify(out));
"""


@pytest.fixture(scope="module")
def result(tmp_path_factory: pytest.TempPathFactory) -> dict:
    out = tmp_path_factory.mktemp("ts_history")
    subprocess.run(  # noqa: S603 — 고정 실행 파일
        ["node", str(TSC), str(TS_FILE), "--outDir", str(out), "--module", "esnext",
         "--target", "es2022", "--moduleResolution", "bundler", "--ignoreConfig", "--noCheck",
         "--noResolve"],
        cwd=str(ROOT), check=True, capture_output=True,
    )  # fmt: skip
    (out / "driver.mjs").write_text(DRIVER, encoding="utf-8")
    run = subprocess.run(  # noqa: S603
        ["node", "--expose-gc", str(out / "driver.mjs"), str(out / "out.json")],
        capture_output=True, text=True, cwd=str(out),
    )  # fmt: skip
    assert run.returncode == 0, run.stderr
    return json.loads((out / "out.json").read_text(encoding="utf-8"))


def test_초안_통_전부를_되돌림(result) -> None:
    after = result["after"]
    assert result["undo"] and result["restored"] == 1
    assert after["route"] == after["cross"] == after["pipes"] == after["legacy"] == "0"
    # 보기 설정 · pref · result 는 사진 밖 — 되돌리기가 안 건드림
    assert after["layout"] == after["pref"] == after["result"] == "1"


def test_누름_중간은_안_찍고_놓을_때_한_번(result) -> None:
    assert result["heldCanUndo"] is False
    assert result["releasedCanUndo"] is True
    assert result["oneUndo"] == "a" and result["noMoreUndo"]


def test_큰_칸_100단도_바뀐_칸만_늚(result) -> None:
    assert result["steps"] == 99  # 한도 100(첫 사진 포함)
    # 같은 글을 같이 쓰지 않으면 900 KB × 100 ≈ 90 MB(UTF-8 1바이트 글 기준 · 실제는 더)
    assert result["heapMb"] < 10, result["heapMb"]


def test_열기만은_걸음_0(result) -> None:
    assert result["openCanUndo"] is False


def test_조작_한_번은_걸음_하나_되돌리면_열_때(result) -> None:
    assert result["editCanUndo"] is True and result["oneStep"] is True
    assert result["openState"] == {"grade": None, "cross": "opened", "route": "kept", "std": "std"}